1 ;;; mml2015.el --- MIME Security with Pretty Good Privacy (PGP)
2 ;; Copyright (C) 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
4 ;; Author: Shenghuo Zhu <zsh@cs.rochester.edu>
5 ;; Keywords: PGP MIME MML
7 ;; This file is part of GNU Emacs.
9 ;; GNU Emacs is free software; you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published
11 ;; by the Free Software Foundation; either version 2, or (at your
12 ;; option) any later version.
14 ;; GNU Emacs is distributed in the hope that it will be useful, but
15 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 ;; General Public License for more details.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 ;; Boston, MA 02111-1307, USA.
26 ;; RFC 2015 is updated by RFC 3156, this file should be compatible
31 (eval-when-compile (require 'cl))
32 (eval-when-compile (require 'gnus-clfns))
37 (defvar mml2015-use (or
41 (and (fboundp 'pgg-sign-region)
46 (and (fboundp 'gpg-sign-detached)
50 (and (fboundp 'mc-encrypt-generic)
51 (fboundp 'mc-sign-generic)
52 (fboundp 'mc-cleanup-recipient-headers)
54 "The package used for PGP/MIME.")
56 ;; Something is not RFC2015.
57 (defvar mml2015-function-alist
58 '((mailcrypt mml2015-mailcrypt-sign
59 mml2015-mailcrypt-encrypt
60 mml2015-mailcrypt-verify
61 mml2015-mailcrypt-decrypt
62 mml2015-mailcrypt-clear-verify
63 mml2015-mailcrypt-clear-decrypt)
68 mml2015-gpg-clear-verify
69 mml2015-gpg-clear-decrypt)
74 mml2015-pgg-clear-verify
75 mml2015-pgg-clear-decrypt))
76 "Alist of PGP/MIME functions.")
78 (defvar mml2015-result-buffer nil)
80 (defcustom mml2015-unabbrev-trust-alist
81 '(("TRUST_UNDEFINED" . nil)
83 ("TRUST_MARGINAL" . t)
85 ("TRUST_ULTIMATE" . t))
86 "Map GnuPG trust output values to a boolean saying if you trust the key."
87 :type '(repeat (cons (regexp :tag "GnuPG output regexp")
88 (boolean :tag "Trust key"))))
93 (autoload 'mailcrypt-decrypt "mailcrypt")
94 (autoload 'mailcrypt-verify "mailcrypt")
95 (autoload 'mc-pgp-always-sign "mailcrypt")
96 (autoload 'mc-encrypt-generic "mc-toplev")
97 (autoload 'mc-cleanup-recipient-headers "mc-toplev")
98 (autoload 'mc-sign-generic "mc-toplev"))
101 (defvar mc-default-scheme)
104 (defvar mml2015-decrypt-function 'mailcrypt-decrypt)
105 (defvar mml2015-verify-function 'mailcrypt-verify)
107 (defun mml2015-format-error (err)
108 (if (stringp (cadr err))
110 (format "%S" (cdr err))))
112 (defun mml2015-mailcrypt-decrypt (handle ctl)
114 (let (child handles result)
115 (unless (setq child (mm-find-part-by-type
117 "application/octet-stream" nil t))
118 (mm-set-handle-multipart-parameter
119 mm-security-handle 'gnus-info "Corrupted")
120 (throw 'error handle))
122 (mm-insert-part child)
125 (funcall mml2015-decrypt-function)
127 (mm-set-handle-multipart-parameter
128 mm-security-handle 'gnus-details (mml2015-format-error err))
131 (mm-set-handle-multipart-parameter
132 mm-security-handle 'gnus-details "Quit.")
135 (mm-set-handle-multipart-parameter
136 mm-security-handle 'gnus-info "Failed")
137 (throw 'error handle))
138 (setq handles (mm-dissect-buffer t)))
139 (mm-destroy-parts handle)
140 (mm-set-handle-multipart-parameter
141 mm-security-handle 'gnus-info
143 (let ((sig (with-current-buffer mml2015-result-buffer
144 (mml2015-gpg-extract-signature-details))))
145 (concat ", Signer: " sig))))
146 (if (listp (car handles))
150 (defun mml2015-mailcrypt-clear-decrypt ()
154 (funcall mml2015-decrypt-function)
156 (mm-set-handle-multipart-parameter
157 mm-security-handle 'gnus-details (mml2015-format-error err))
160 (mm-set-handle-multipart-parameter
161 mm-security-handle 'gnus-details "Quit.")
164 (mm-set-handle-multipart-parameter
165 mm-security-handle 'gnus-info "OK")
166 (mm-set-handle-multipart-parameter
167 mm-security-handle 'gnus-info "Failed"))))
169 (defun mml2015-fix-micalg (alg)
171 ;; Mutt/1.2.5i has seen sending micalg=php-sha1
172 (upcase (if (string-match "^p[gh]p-" alg)
173 (substring alg (match-end 0))
176 (defun mml2015-mailcrypt-verify (handle ctl)
179 (unless (setq part (mm-find-raw-part-by-type
180 ctl (or (mm-handle-multipart-ctl-parameter
182 "application/pgp-signature")
184 (mm-set-handle-multipart-parameter
185 mm-security-handle 'gnus-info "Corrupted")
186 (throw 'error handle))
188 (insert "-----BEGIN PGP SIGNED MESSAGE-----\n")
189 (insert (format "Hash: %s\n\n"
190 (or (mml2015-fix-micalg
191 (mm-handle-multipart-ctl-parameter
195 (narrow-to-region (point) (point))
197 (goto-char (point-min))
199 (if (looking-at "^-")
202 (unless (setq part (mm-find-part-by-type
203 (cdr handle) "application/pgp-signature" nil t))
204 (mm-set-handle-multipart-parameter
205 mm-security-handle 'gnus-info "Corrupted")
206 (throw 'error handle))
208 (narrow-to-region (point) (point))
209 (mm-insert-part part)
210 (goto-char (point-min))
211 (if (re-search-forward "^-----BEGIN PGP [^-]+-----\r?$" nil t)
212 (replace-match "-----BEGIN PGP SIGNATURE-----" t t))
213 (if (re-search-forward "^-----END PGP [^-]+-----\r?$" nil t)
214 (replace-match "-----END PGP SIGNATURE-----" t t)))
215 (let ((mc-gpg-debug-buffer (get-buffer-create " *gnus gpg debug*")))
216 (unless (condition-case err
218 (funcall mml2015-verify-function)
219 (if (get-buffer " *mailcrypt stderr temp")
220 (mm-set-handle-multipart-parameter
221 mm-security-handle 'gnus-details
222 (with-current-buffer " *mailcrypt stderr temp"
224 (if (get-buffer " *mailcrypt stdout temp")
225 (kill-buffer " *mailcrypt stdout temp"))
226 (if (get-buffer " *mailcrypt stderr temp")
227 (kill-buffer " *mailcrypt stderr temp"))
228 (if (get-buffer " *mailcrypt status temp")
229 (kill-buffer " *mailcrypt status temp"))
230 (if (get-buffer mc-gpg-debug-buffer)
231 (kill-buffer mc-gpg-debug-buffer)))
233 (mm-set-handle-multipart-parameter
234 mm-security-handle 'gnus-details (mml2015-format-error err))
237 (mm-set-handle-multipart-parameter
238 mm-security-handle 'gnus-details "Quit.")
240 (mm-set-handle-multipart-parameter
241 mm-security-handle 'gnus-info "Failed")
242 (throw 'error handle))))
243 (mm-set-handle-multipart-parameter
244 mm-security-handle 'gnus-info "OK")
247 (defun mml2015-mailcrypt-clear-verify ()
248 (let ((mc-gpg-debug-buffer (get-buffer-create " *gnus gpg debug*")))
249 (if (condition-case err
251 (funcall mml2015-verify-function)
252 (if (get-buffer " *mailcrypt stderr temp")
253 (mm-set-handle-multipart-parameter
254 mm-security-handle 'gnus-details
255 (with-current-buffer " *mailcrypt stderr temp"
257 (if (get-buffer " *mailcrypt stdout temp")
258 (kill-buffer " *mailcrypt stdout temp"))
259 (if (get-buffer " *mailcrypt stderr temp")
260 (kill-buffer " *mailcrypt stderr temp"))
261 (if (get-buffer " *mailcrypt status temp")
262 (kill-buffer " *mailcrypt status temp"))
263 (if (get-buffer mc-gpg-debug-buffer)
264 (kill-buffer mc-gpg-debug-buffer)))
266 (mm-set-handle-multipart-parameter
267 mm-security-handle 'gnus-details (mml2015-format-error err))
270 (mm-set-handle-multipart-parameter
271 mm-security-handle 'gnus-details "Quit.")
273 (mm-set-handle-multipart-parameter
274 mm-security-handle 'gnus-info "OK")
275 (mm-set-handle-multipart-parameter
276 mm-security-handle 'gnus-info "Failed"))))
278 (defun mml2015-mailcrypt-sign (cont)
279 (mc-sign-generic (message-options-get 'message-sender)
282 (funcall mml-boundary-function (incf mml-multipart-number)))
284 (goto-char (point-min))
285 (unless (re-search-forward "^-----BEGIN PGP SIGNED MESSAGE-----\r?$" nil t)
286 (error "Cannot find signed begin line"))
287 (goto-char (match-beginning 0))
289 (unless (looking-at "Hash:[ \t]*\\([a-zA-Z0-9]+\\)")
290 (error "Cannot not find PGP hash"))
291 (setq hash (match-string 1))
292 (unless (re-search-forward "^$" nil t)
293 (error "Cannot not find PGP message"))
295 (delete-region (point-min) (point))
296 (insert (format "Content-Type: multipart/signed; boundary=\"%s\";\n"
298 (insert (format "\tmicalg=pgp-%s; protocol=\"application/pgp-signature\"\n"
300 (insert (format "\n--%s\n" boundary))
302 (goto-char (point-max))
303 (unless (re-search-backward "^-----END PGP SIGNATURE-----\r?$" nil t)
304 (error "Cannot find signature part"))
305 (replace-match "-----END PGP MESSAGE-----" t t)
306 (goto-char (match-beginning 0))
307 (unless (re-search-backward "^-----BEGIN PGP SIGNATURE-----\r?$"
309 (error "Cannot find signature part"))
310 (replace-match "-----BEGIN PGP MESSAGE-----" t t)
311 (goto-char (match-beginning 0))
313 (narrow-to-region point (point))
315 (while (re-search-forward "^- -" nil t)
316 (replace-match "-" t t))
317 (goto-char (point-max)))
318 (insert (format "--%s\n" boundary))
319 (insert "Content-Type: application/pgp-signature\n\n")
320 (goto-char (point-max))
321 (insert (format "--%s--\n" boundary))
322 (goto-char (point-max))))
324 (defun mml2015-mailcrypt-encrypt (cont &optional sign)
325 (let ((mc-pgp-always-sign
326 (or mc-pgp-always-sign
328 (eq t (or (message-options-get 'message-sign-encrypt)
330 'message-sign-encrypt
331 (or (y-or-n-p "Sign the message? ")
334 (mm-with-unibyte-current-buffer
336 (or (message-options-get 'message-recipients)
337 (message-options-set 'message-recipients
338 (mc-cleanup-recipient-headers
339 (read-string "Recipients: "))))
341 (message-options-get 'message-sender))))
342 (goto-char (point-min))
343 (unless (looking-at "-----BEGIN PGP MESSAGE-----")
344 (error "Fail to encrypt the message"))
346 (funcall mml-boundary-function (incf mml-multipart-number))))
347 (insert (format "Content-Type: multipart/encrypted; boundary=\"%s\";\n"
349 (insert "\tprotocol=\"application/pgp-encrypted\"\n\n")
350 (insert (format "--%s\n" boundary))
351 (insert "Content-Type: application/pgp-encrypted\n\n")
352 (insert "Version: 1\n\n")
353 (insert (format "--%s\n" boundary))
354 (insert "Content-Type: application/octet-stream\n\n")
355 (goto-char (point-max))
356 (insert (format "--%s--\n" boundary))
357 (goto-char (point-max))))
362 (autoload 'gpg-decrypt "gpg")
363 (autoload 'gpg-verify "gpg")
364 (autoload 'gpg-verify-cleartext "gpg")
365 (autoload 'gpg-sign-detached "gpg")
366 (autoload 'gpg-sign-encrypt "gpg")
367 (autoload 'gpg-encrypt "gpg")
368 (autoload 'gpg-passphrase-read "gpg"))
370 (defun mml2015-gpg-passphrase ()
371 (or (message-options-get 'gpg-passphrase)
372 (message-options-set 'gpg-passphrase (gpg-passphrase-read))))
374 (defun mml2015-gpg-decrypt-1 ()
375 (let ((cipher (current-buffer)) plain result)
376 (if (with-temp-buffer
378 (gpg-decrypt cipher (setq plain (current-buffer))
379 mml2015-result-buffer nil)
380 (mm-set-handle-multipart-parameter
381 mm-security-handle 'gnus-details
382 (with-current-buffer mml2015-result-buffer
386 (insert-buffer-substring plain)
387 (goto-char (point-min))
388 (while (search-forward "\r\n" nil t)
389 (replace-match "\n" t t))))
391 ;; Some wrong with the return value, check plain text buffer.
392 (if (> (point-max) (point-min))
396 (defun mml2015-gpg-decrypt (handle ctl)
397 (let ((mml2015-decrypt-function 'mml2015-gpg-decrypt-1))
398 (mml2015-mailcrypt-decrypt handle ctl)))
400 (defun mml2015-gpg-clear-decrypt ()
402 (setq result (mml2015-gpg-decrypt-1))
404 (mm-set-handle-multipart-parameter
405 mm-security-handle 'gnus-info "OK")
406 (mm-set-handle-multipart-parameter
407 mm-security-handle 'gnus-info "Failed"))))
409 (defun mml2015-gpg-pretty-print-fpr (fingerprint)
411 (fpr-length (string-width fingerprint))
414 (setq fingerprint (string-to-list fingerprint))
416 (setq fpr-length (- fpr-length 4))
417 (setq slice (butlast fingerprint fpr-length))
418 (setq fingerprint (nthcdr 4 fingerprint))
419 (setq n-slice (1+ n-slice))
425 (otherwise (concat " " slice))))))
428 (defun mml2015-gpg-extract-signature-details ()
429 (goto-char (point-min))
430 (let* ((expired (re-search-forward
431 "^\\[GNUPG:\\] SIGEXPIRED$"
433 (signer (and (re-search-forward
434 "^\\[GNUPG:\\] GOODSIG \\([0-9A-Za-z]*\\) \\(.*\\)$"
436 (cons (match-string 1) (match-string 2))))
437 (fprint (and (re-search-forward
438 "^\\[GNUPG:\\] VALIDSIG \\([0-9a-zA-Z]*\\) "
441 (trust (and (re-search-forward
442 "^\\[GNUPG:\\] \\(TRUST_.*\\)$"
446 (cdr (assoc trust mml2015-unabbrev-trust-alist))))
447 (cond ((and signer fprint)
449 (unless trust-good-enough-p
450 (concat "\nUntrusted, Fingerprint: "
451 (mml2015-gpg-pretty-print-fpr fprint)))
453 (format "\nWARNING: Signature from expired key (%s)"
456 "^\\(gpg: \\)?Good signature from \"\\(.*\\)\"$" nil t)
459 "From unknown user"))))
461 (defun mml2015-gpg-verify (handle ctl)
463 (let (part message signature info-is-set-p)
464 (unless (setq part (mm-find-raw-part-by-type
465 ctl (or (mm-handle-multipart-ctl-parameter
467 "application/pgp-signature")
469 (mm-set-handle-multipart-parameter
470 mm-security-handle 'gnus-info "Corrupted")
471 (throw 'error handle))
473 (setq message (current-buffer))
475 ;; Convert <LF> to <CR><LF> in verify mode. Sign and
476 ;; clearsign use --textmode. The conversion is not necessary.
477 ;; In clearverify, the conversion is not necessary either.
478 (goto-char (point-min))
481 (unless (eq (char-before) ?\r)
486 (setq signature (current-buffer))
487 (unless (setq part (mm-find-part-by-type
488 (cdr handle) "application/pgp-signature" nil t))
489 (mm-set-handle-multipart-parameter
490 mm-security-handle 'gnus-info "Corrupted")
491 (throw 'error handle))
492 (mm-insert-part part)
493 (unless (condition-case err
495 (gpg-verify message signature mml2015-result-buffer)
496 (mm-set-handle-multipart-parameter
497 mm-security-handle 'gnus-details
498 (with-current-buffer mml2015-result-buffer
501 (mm-set-handle-multipart-parameter
502 mm-security-handle 'gnus-details (mml2015-format-error err))
503 (mm-set-handle-multipart-parameter
504 mm-security-handle 'gnus-info "Error.")
505 (setq info-is-set-p t)
508 (mm-set-handle-multipart-parameter
509 mm-security-handle 'gnus-details "Quit.")
510 (mm-set-handle-multipart-parameter
511 mm-security-handle 'gnus-info "Quit.")
512 (setq info-is-set-p t)
514 (unless info-is-set-p
515 (mm-set-handle-multipart-parameter
516 mm-security-handle 'gnus-info "Failed"))
517 (throw 'error handle)))
518 (mm-set-handle-multipart-parameter
519 mm-security-handle 'gnus-info
520 (with-current-buffer mml2015-result-buffer
521 (mml2015-gpg-extract-signature-details))))
524 (defun mml2015-gpg-clear-verify ()
525 (if (condition-case err
527 (gpg-verify-cleartext (current-buffer) mml2015-result-buffer)
528 (mm-set-handle-multipart-parameter
529 mm-security-handle 'gnus-details
530 (with-current-buffer mml2015-result-buffer
533 (mm-set-handle-multipart-parameter
534 mm-security-handle 'gnus-details (mml2015-format-error err))
537 (mm-set-handle-multipart-parameter
538 mm-security-handle 'gnus-details "Quit.")
540 (mm-set-handle-multipart-parameter
541 mm-security-handle 'gnus-info
542 (with-current-buffer mml2015-result-buffer
543 (mml2015-gpg-extract-signature-details)))
544 (mm-set-handle-multipart-parameter
545 mm-security-handle 'gnus-info "Failed")))
547 (defun mml2015-gpg-sign (cont)
549 (funcall mml-boundary-function (incf mml-multipart-number)))
550 (text (current-buffer)) signature)
551 (goto-char (point-max))
555 (unless (gpg-sign-detached text (setq signature (current-buffer))
556 mml2015-result-buffer
558 (message-options-get 'message-sender)
559 t t) ; armor & textmode
560 (unless (> (point-max) (point-min))
561 (pop-to-buffer mml2015-result-buffer)
562 (error "Sign error")))
563 (goto-char (point-min))
564 (while (re-search-forward "\r+$" nil t)
565 (replace-match "" t t))
567 (goto-char (point-min))
568 (insert (format "Content-Type: multipart/signed; boundary=\"%s\";\n"
570 ;;; FIXME: what is the micalg?
571 (insert "\tmicalg=pgp-sha1; protocol=\"application/pgp-signature\"\n")
572 (insert (format "\n--%s\n" boundary))
573 (goto-char (point-max))
574 (insert (format "\n--%s\n" boundary))
575 (insert "Content-Type: application/pgp-signature\n\n")
576 (insert-buffer-substring signature)
577 (goto-char (point-max))
578 (insert (format "--%s--\n" boundary))
579 (goto-char (point-max)))))
581 (defun mml2015-gpg-encrypt (cont &optional sign)
583 (funcall mml-boundary-function (incf mml-multipart-number)))
584 (text (current-buffer))
586 (mm-with-unibyte-current-buffer
588 ;; set up a function to call the correct gpg encrypt routine
589 ;; with the right arguments. (FIXME: this should be done
591 (flet ((gpg-encrypt-func
592 (sign plaintext ciphertext result recipients &optional
593 passphrase sign-with-key armor textmode)
596 plaintext ciphertext result recipients passphrase
597 sign-with-key armor textmode)
599 plaintext ciphertext result recipients passphrase
601 (unless (gpg-encrypt-func
602 sign ; passed in when using signencrypt
603 text (setq cipher (current-buffer))
604 mml2015-result-buffer
607 (message-options-get 'message-recipients)
608 (message-options-set 'message-recipients
609 (read-string "Recipients: ")))
612 (message-options-get 'message-sender)
613 t t) ; armor & textmode
614 (unless (> (point-max) (point-min))
615 (pop-to-buffer mml2015-result-buffer)
616 (error "Encrypt error"))))
617 (goto-char (point-min))
618 (while (re-search-forward "\r+$" nil t)
619 (replace-match "" t t))
621 (delete-region (point-min) (point-max))
622 (insert (format "Content-Type: multipart/encrypted; boundary=\"%s\";\n"
624 (insert "\tprotocol=\"application/pgp-encrypted\"\n\n")
625 (insert (format "--%s\n" boundary))
626 (insert "Content-Type: application/pgp-encrypted\n\n")
627 (insert "Version: 1\n\n")
628 (insert (format "--%s\n" boundary))
629 (insert "Content-Type: application/octet-stream\n\n")
630 (insert-buffer-substring cipher)
631 (goto-char (point-max))
632 (insert (format "--%s--\n" boundary))
633 (goto-char (point-max))))))
638 (defvar pgg-errors-buffer)
639 (defvar pgg-output-buffer))
642 (autoload 'pgg-decrypt-region "pgg")
643 (autoload 'pgg-verify-region "pgg")
644 (autoload 'pgg-sign-region "pgg")
645 (autoload 'pgg-encrypt-region "pgg"))
647 (defun mml2015-pgg-decrypt (handle ctl)
649 (let ((pgg-errors-buffer mml2015-result-buffer)
650 child handles result decrypt-status)
651 (unless (setq child (mm-find-part-by-type
653 "application/octet-stream" nil t))
654 (mm-set-handle-multipart-parameter
655 mm-security-handle 'gnus-info "Corrupted")
656 (throw 'error handle))
658 (mm-insert-part child)
659 (if (condition-case err
661 (pgg-decrypt-region (point-min) (point-max))
663 (with-current-buffer mml2015-result-buffer
665 (mm-set-handle-multipart-parameter
666 mm-security-handle 'gnus-details
669 (mm-set-handle-multipart-parameter
670 mm-security-handle 'gnus-details (mml2015-format-error err))
673 (mm-set-handle-multipart-parameter
674 mm-security-handle 'gnus-details "Quit.")
676 (with-current-buffer pgg-output-buffer
677 (goto-char (point-min))
678 (while (search-forward "\r\n" nil t)
679 (replace-match "\n" t t))
680 (setq handles (mm-dissect-buffer t))
681 (mm-destroy-parts handle)
682 (mm-set-handle-multipart-parameter
683 mm-security-handle 'gnus-info "OK")
684 (mm-set-handle-multipart-parameter
685 mm-security-handle 'gnus-details
686 (concat decrypt-status
687 (when (stringp (car handles))
688 "\n" (mm-handle-multipart-ctl-parameter
689 handles 'gnus-details))))
690 (if (listp (car handles))
693 (mm-set-handle-multipart-parameter
694 mm-security-handle 'gnus-info "Failed")
695 (throw 'error handle))))))
697 (defun mml2015-pgg-clear-decrypt ()
698 (let ((pgg-errors-buffer mml2015-result-buffer))
700 (pgg-decrypt-region (point-min) (point-max))
701 (mm-set-handle-multipart-parameter
702 mm-security-handle 'gnus-details
703 (with-current-buffer mml2015-result-buffer
707 (insert-buffer-substring pgg-output-buffer)
708 (goto-char (point-min))
709 (while (search-forward "\r\n" nil t)
710 (replace-match "\n" t t))
711 (mm-set-handle-multipart-parameter
712 mm-security-handle 'gnus-info "OK"))
713 (mm-set-handle-multipart-parameter
714 mm-security-handle 'gnus-info "Failed"))))
716 (defun mml2015-pgg-verify (handle ctl)
717 (let ((pgg-errors-buffer mml2015-result-buffer)
718 signature-file part signature)
719 (if (or (null (setq part (mm-find-raw-part-by-type
720 ctl (or (mm-handle-multipart-ctl-parameter
722 "application/pgp-signature")
724 (null (setq signature (mm-find-part-by-type
725 (cdr handle) "application/pgp-signature" nil t))))
727 (mm-set-handle-multipart-parameter
728 mm-security-handle 'gnus-info "Corrupted")
732 ;; Convert <LF> to <CR><LF> in verify mode. Sign and
733 ;; clearsign use --textmode. The conversion is not necessary.
734 ;; In clearverify, the conversion is not necessary either.
735 (goto-char (point-min))
738 (unless (eq (char-before) ?\r)
742 (with-temp-file (setq signature-file (mm-make-temp-file "pgg"))
743 (mm-insert-part signature))
744 (if (condition-case err
746 (pgg-verify-region (point-min) (point-max)
748 (goto-char (point-min))
749 (while (search-forward "\r\n" nil t)
750 (replace-match "\n" t t))
751 (mm-set-handle-multipart-parameter
752 mm-security-handle 'gnus-details
753 (concat (with-current-buffer pgg-output-buffer
755 (with-current-buffer pgg-errors-buffer
758 (mm-set-handle-multipart-parameter
759 mm-security-handle 'gnus-details (mml2015-format-error err))
762 (mm-set-handle-multipart-parameter
763 mm-security-handle 'gnus-details "Quit.")
766 (delete-file signature-file)
767 (mm-set-handle-multipart-parameter
768 mm-security-handle 'gnus-info
769 (with-current-buffer pgg-errors-buffer
770 (mml2015-gpg-extract-signature-details))))
771 (delete-file signature-file)
772 (mm-set-handle-multipart-parameter
773 mm-security-handle 'gnus-info "Failed")))))
776 (defun mml2015-pgg-clear-verify ()
777 (let ((pgg-errors-buffer mml2015-result-buffer)
778 (text (buffer-string))
779 (coding-system buffer-file-coding-system))
780 (if (condition-case err
782 (mm-with-unibyte-buffer
783 (insert (encode-coding-string text coding-system))
784 (pgg-verify-region (point-min) (point-max) nil t))
785 (goto-char (point-min))
786 (while (search-forward "\r\n" nil t)
787 (replace-match "\n" t t))
788 (mm-set-handle-multipart-parameter
789 mm-security-handle 'gnus-details
790 (concat (with-current-buffer pgg-output-buffer
792 (with-current-buffer pgg-errors-buffer
795 (mm-set-handle-multipart-parameter
796 mm-security-handle 'gnus-details (mml2015-format-error err))
799 (mm-set-handle-multipart-parameter
800 mm-security-handle 'gnus-details "Quit.")
802 (mm-set-handle-multipart-parameter
803 mm-security-handle 'gnus-info
804 (with-current-buffer pgg-errors-buffer
805 (mml2015-gpg-extract-signature-details)))
806 (mm-set-handle-multipart-parameter
807 mm-security-handle 'gnus-info "Failed"))))
809 (defun mml2015-pgg-sign (cont)
810 (let ((pgg-errors-buffer mml2015-result-buffer)
811 (boundary (funcall mml-boundary-function (incf mml-multipart-number)))
812 (pgg-default-user-id (or (message-options-get 'mml-sender)
813 pgg-default-user-id)))
814 (unless (pgg-sign-region (point-min) (point-max))
815 (pop-to-buffer mml2015-result-buffer)
816 (error "Sign error"))
817 (goto-char (point-min))
818 (insert (format "Content-Type: multipart/signed; boundary=\"%s\";\n"
820 ;;; FIXME: what is the micalg?
821 (insert "\tmicalg=pgp-sha1; protocol=\"application/pgp-signature\"\n")
822 (insert (format "\n--%s\n" boundary))
823 (goto-char (point-max))
824 (insert (format "\n--%s\n" boundary))
825 (insert "Content-Type: application/pgp-signature\n\n")
826 (insert-buffer-substring pgg-output-buffer)
827 (goto-char (point-max))
828 (insert (format "--%s--\n" boundary))
829 (goto-char (point-max))))
831 (defun mml2015-pgg-encrypt (cont &optional sign)
832 (let ((pgg-errors-buffer mml2015-result-buffer)
833 (boundary (funcall mml-boundary-function (incf mml-multipart-number))))
834 (unless (pgg-encrypt-region (point-min) (point-max)
837 (message-options-get 'message-recipients)
838 (message-options-set 'message-recipients
839 (read-string "Recipients: ")))
842 (pop-to-buffer mml2015-result-buffer)
843 (error "Encrypt error"))
844 (delete-region (point-min) (point-max))
845 (goto-char (point-min))
846 (insert (format "Content-Type: multipart/encrypted; boundary=\"%s\";\n"
848 (insert "\tprotocol=\"application/pgp-encrypted\"\n\n")
849 (insert (format "--%s\n" boundary))
850 (insert "Content-Type: application/pgp-encrypted\n\n")
851 (insert "Version: 1\n\n")
852 (insert (format "--%s\n" boundary))
853 (insert "Content-Type: application/octet-stream\n\n")
854 (insert-buffer-substring pgg-output-buffer)
855 (goto-char (point-max))
856 (insert (format "--%s--\n" boundary))
857 (goto-char (point-max))))
861 (defun mml2015-clean-buffer ()
862 (if (gnus-buffer-live-p mml2015-result-buffer)
863 (with-current-buffer mml2015-result-buffer
866 (setq mml2015-result-buffer
867 (gnus-get-buffer-create "*MML2015 Result*"))
870 (defsubst mml2015-clear-decrypt-function ()
871 (nth 6 (assq mml2015-use mml2015-function-alist)))
873 (defsubst mml2015-clear-verify-function ()
874 (nth 5 (assq mml2015-use mml2015-function-alist)))
877 (defun mml2015-decrypt (handle ctl)
878 (mml2015-clean-buffer)
879 (let ((func (nth 4 (assq mml2015-use mml2015-function-alist))))
881 (funcall func handle ctl)
885 (defun mml2015-decrypt-test (handle ctl)
889 (defun mml2015-verify (handle ctl)
890 (mml2015-clean-buffer)
891 (let ((func (nth 3 (assq mml2015-use mml2015-function-alist))))
893 (funcall func handle ctl)
897 (defun mml2015-verify-test (handle ctl)
901 (defun mml2015-encrypt (cont &optional sign)
902 (mml2015-clean-buffer)
903 (let ((func (nth 2 (assq mml2015-use mml2015-function-alist))))
905 (funcall func cont sign)
906 (error "Cannot find encrypt function"))))
909 (defun mml2015-sign (cont)
910 (mml2015-clean-buffer)
911 (let ((func (nth 1 (assq mml2015-use mml2015-function-alist))))
914 (error "Cannot find sign function"))))
917 (defun mml2015-self-encrypt ()
918 (mml2015-encrypt nil))
922 ;;; mml2015.el ends here